CN110660834B - Pixel structure, display panel, display device and manufacturing method - Google Patents
Pixel structure, display panel, display device and manufacturing method Download PDFInfo
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- CN110660834B CN110660834B CN201910936683.4A CN201910936683A CN110660834B CN 110660834 B CN110660834 B CN 110660834B CN 201910936683 A CN201910936683 A CN 201910936683A CN 110660834 B CN110660834 B CN 110660834B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
- H10K71/164—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using vacuum deposition
Abstract
The application provides a pixel structure, a display panel, a display device and a manufacturing method, and relates to the technical field of display. The pixel structure includes: a pixel defining layer and a light emitting layer; the pixel defining layer includes a plurality of pixel spacers arranged in a matrix, and openings formed between adjacent pixel spacers; the light emitting layer includes a plurality of light emitting cells; each opening is provided with a light-emitting unit, each light-emitting unit covers the opening, and at least one side of each light-emitting unit extends to cover the top of the pixel separator on the side surface of the opening; the light emitting units include a first color light emitting unit, a second color light emitting unit, and a third color light emitting unit; a third color light-emitting unit is arranged between each first color light-emitting unit and each second color light-emitting unit; the third color light emitting unit includes an anti-stokes material. The application can solve the technical problem of poor color mixing of the adjacent light-emitting units in the prior art.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a pixel structure, a display panel, a display device and a manufacturing method thereof.
Background
At present, the light emitting layer is evaporated by using a FMM (Fine metal Mask) type as an evaporation Mask, but the light emitting layer formed by evaporation is easy to appear, and the end of the light emitting layer after the evaporation is deviated and covered on the end of the adjacent light emitting layer after the evaporation, thereby generating a deviation overlapping area, and the deviation overlapping area brings about a problem of poor color mixing.
Due to the arrangement of the existing pixels and the properties of the red, green and blue Light Emitting units, the evaporation device using an OLED (Organic Light-Emitting Diode) is prone to generate an offset overlapping area, thereby causing a problem of poor color mixing and causing a significant loss to the product yield.
Therefore, it is an urgent problem to solve how to avoid the occurrence of color mixing failure when the end portions of the adjacent light emitting cells are offset and overlapped after vapor deposition.
Disclosure of Invention
The present disclosure is directed to a pixel structure, a display panel, a display device and a manufacturing method thereof, so as to solve the technical problem of poor color mixing of the adjacent light emitting units.
In order to achieve the above object, in a first aspect, an embodiment of the present application provides a pixel structure, configured to be disposed on a substrate, including: a pixel defining layer and a light emitting layer;
the pixel defining layer includes a plurality of pixel spacers arranged in a matrix, and openings formed between adjacent pixel spacers;
the light emitting layer includes a plurality of light emitting cells;
each opening is provided with a light-emitting unit, each light-emitting unit covers the opening, and at least one side of each light-emitting unit extends to cover the pixel separator on the side surface of the opening;
the light emitting units include a first color light emitting unit, a second color light emitting unit, and a third color light emitting unit;
a third color light-emitting unit is arranged between each first color light-emitting unit and each second color light-emitting unit;
the third color light emitting unit includes an anti-stokes material.
Optionally, the third color light emitting unit includes a first side and a second side, the length of the first side is longer than that of the second side, and the first side is close to the first color light emitting unit or the second color light emitting unit.
Optionally, projections of the first color light emitting unit, the second color light emitting unit and the third color light emitting unit on the substrate are rectangular;
two first side edges of the third color light-emitting unit are respectively close to the first color light-emitting unit and the second color light-emitting unit;
the projection of the plurality of third color light-emitting units on the substrate base plate is arranged at intervals in the transverse direction and the longitudinal direction;
the projection of the first side edge of the light-emitting unit of the third color on the substrate base plate is vertical to the first direction; the first direction is a direction of a line connecting centers of the first color light emitting unit and the second color light emitting unit adjacent to the third color light emitting unit.
Optionally, an anode unit in the anode layer is disposed on the bottom surface of the opening and between the pixel separators on both sides of the opening.
Optionally, a contact surface between the side surface of the pixel separator and the light emitting unit is an arc surface;
the contact surface between the side surface of the pixel separator and the anode unit is a plane;
the top surface of the pixel separator is planar.
Alternatively, if there is an offset overlap region of the end of the adjacent light emitting unit on top of the pixel separator, the end of the third color light emitting unit is located below the end of the other color light emitting unit in the adjacent light emitting unit; the other color light emitting units include a first color light emitting unit and a second color light emitting unit.
Optionally, the third color light emitting cell is blue;
if the first color light-emitting unit is red, the second color light-emitting unit is green;
if the first color light-emitting unit is green, the second color light-emitting unit is red.
In a second aspect, an embodiment of the present application further provides a display panel, including: a substrate base plate and the pixel structure of the first aspect;
the pixel structure is arranged on the substrate base plate.
In a third aspect, an embodiment of the present application further provides a display device, including the display panel of the third aspect.
In a fourth aspect, an embodiment of the present application further provides a method for manufacturing a pixel structure, which is applied to the pixel structure of the first aspect, and includes the following steps:
providing a substrate, and forming a pixel defining layer on the substrate;
and a light-emitting unit is arranged at each opening to ensure that a third color light-emitting layer is arranged between each second color light-emitting layer and each first color light-emitting layer.
Optionally, one light emitting unit is disposed at each opening, including:
and evaporating a third color light emitting layer at one opening, and then evaporating a second color light emitting layer and a first color light emitting layer at two sides of the third color light emitting layer.
Compared with the prior art, the technical scheme of the embodiment of the application has at least the following beneficial technical effects:
1) the third color light-emitting unit comprises an anti-stokes material, the light-emitting units in the light-emitting layer are rearranged, a third color light-emitting unit is arranged between each first color light-emitting unit and each second color light-emitting unit, due to the material property of the third color light-emitting unit, the energy on the first color light-emitting unit and the energy on the second color light-emitting unit are transferred to the third color light-emitting unit, the color of the third color light-emitting unit in the evaporation offset overlapping area is not affected by the materials of the other color light-emitting units, and therefore the problem of poor color mixing of the product offset overlapping area is solved.
2) The pixel structure of the embodiment of the application solves the problem of vapor deposition color mixing of the display panel with the pixel structure and the display device, and the vapor deposition device structure does not need to be improved, so that the product yield is improved, and the product market competitiveness is improved.
3) The third color light-emitting unit is arranged between each first color light-emitting unit and each second color light-emitting unit, so that the distance between the first color light-emitting units and the second color light-emitting units is increased, and the probability of color mixing of the first color light-emitting units and the second color light-emitting units is further reduced.
Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of an arrangement of light emitting units of a pixel structure according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an arrangement of light emitting units of a pixel structure in the prior art;
fig. 4 is a flowchart of a method for fabricating a pixel structure according to an embodiment of the present disclosure.
Reference numerals:
1-pixel separator, 2-opening, 3-first color light emitting unit, 4-second color light emitting unit, 5-third color light emitting unit, 6-anode unit, 7-substrate base plate.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The inventor of the present application has found through research that the existing light emitting unit is formed by evaporating an organic material on a substrate by using an evaporation process, to form a Light Emitting layer, an evaporation mask is generally used to sequentially evaporate Light Emitting units of three colors, the Light Emitting units on a conventional OLED (Organic Light-Emitting Diode) substrate and pixel circuits of TFTs (Thin Film transistors) are arranged in a horizontal parallel manner, the sum of the manufacturing error of the evaporation mask and the alignment error with the substrate is generally 15 μm (micrometer), because the existing evaporation mask adopts the FMM form to evaporate the light-emitting units, the existing arrangement form of the light-emitting units and the property of the used materials of the light-emitting units cause that an evaporation device adopting the OLED is easy to generate an offset overlapping area, thereby bringing the problem of poor color mixing and causing great loss to the product yield.
The present application provides a pixel structure, a display panel, a display device and a manufacturing method thereof, which aim to solve the above technical problems in the prior art.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
The embodiment of the present application provides a pixel structure, as shown in fig. 1, for being disposed on a substrate 7, the pixel structure including: a pixel defining layer and a light emitting layer;
the pixel defining layer includes a plurality of pixel separators 1 arranged in a matrix, and openings 2 formed between the adjacent pixel separators 1;
the light emitting layer includes a plurality of light emitting cells;
each opening 2 is provided with a light emitting unit, each light emitting unit covers the opening 2, and at least one side of the light emitting unit extends to cover the pixel separator 1 on the side surface of the opening 2.
The light emitting units include a first color light emitting unit 3, a second color light emitting unit 4, and a third color light emitting unit 5. In fig. 1, in order to distinguish the boundary between the pixel separator 1 and the second color light emitting unit 4, a boundary of black is intentionally added only for more clearly demarcating the pixel separator 1 and the second color light emitting unit 4.
A third color light emitting unit 5 is provided between each first color light emitting unit 3 and each second color light emitting unit 4.
The third color light emitting unit 5 comprises an anti-stokes material.
The third color light-emitting unit 5 of the application comprises an anti-stokes material, and the light-emitting units in the light-emitting layer are rearranged, a third color light-emitting unit 5 is arranged between each first color light-emitting unit 3 and each second color light-emitting unit 4, because of the material property of the third color light-emitting unit 5, the energy on the first color light-emitting unit 3 and the second color light-emitting unit 4 is transferred to the third color light-emitting unit 5, the color of the third color light-emitting unit 5 in the evaporation coating offset overlapping area is not affected by the materials of the other color light-emitting units, so that the problem of poor color mixing in the product offset overlapping area is avoided, the structure of an evaporation coating device is not required to be improved, the product yield is improved, and the product market competitiveness is improved.
The anti-stokes material has an anti-stokes effect, and the luminescent molecules can emit light with a wavelength shorter than an excitation wavelength under the excitation of long-wavelength light. The anti-stokes material can be 9, 10-disubstituted anthracene derivative or dendritic anthracene derivative.
Alternatively, as shown in fig. 1, both sides of the light emitting unit extend to cover the pixel separator 1 on the side of the opening 2, respectively.
Alternatively, referring to fig. 2, the third color light emitting unit 5 includes a first side and a second side, the first side having a length longer than that of the second side, and the first side is adjacent to the first color light emitting unit 3 or the second color light emitting unit 4.
Alternatively, referring to fig. 2, the projections of the first color light-emitting unit 3, the second color light-emitting unit 4, and the third color light-emitting unit 5 on the substrate base 7 are all rectangular;
two first sides of each third color light emitting unit 5 are respectively close to one first color light emitting unit 3 and one second color light emitting unit 4;
the projection of a plurality of third color light emitting units 5 on the substrate base 7 is arranged at intervals in the transverse and longitudinal directions;
the projection of the first side of the third color light emitting unit 5 on the substrate base plate 7 is perpendicular to the first direction; the first direction is a direction of a line connecting centers of the first color light emitting cell and the second color light emitting cell adjacent to the third color light emitting cell 5.
As an example, referring to fig. 1 and 2, the third color light emitting unit 5 includes two opposite first sides having a length longer than either side of the first and second color light emitting units 3 and 4 and two opposite second sides having a length shorter than either side of the first and second color light emitting units 3 and 4. The third color light emitting cells 5 are arranged in a substantially cross-shaped structure on the base substrate 7, and one first color light emitting cell 3 or one second color light emitting cell 4 is arranged between the long sides of two adjacent third color light emitting cells 5.
Alternatively, as shown in fig. 1, an anode unit 6 in an anode layer of a light emitting layer is provided between the pixel separators 1 on both sides of the opening 2 and on the bottom surface of the opening 2. The anode unit 6 may be ITO (Indium Tin Oxides).
Alternatively, as shown in fig. 1, a contact surface of the side surface of the pixel separator 1 and the light emitting unit is an arc surface; the curved surface facilitates the attachment of the side surface of the pixel separator 1 to the light emitting unit.
The contact surface of the side surface of the pixel separator 1 and the anode unit 6 is a plane.
The top surface of the pixel separator 1 is a plane.
It will be appreciated by those skilled in the art that other common structures may be adopted for the pixel separator 1 as long as they can be used for the light emitting unit attachment and the anode unit 6 may be disposed between the openings of the adjacent pixel separators 1.
Alternatively, as shown in fig. 1, if there is an offset overlap region of the end portions of the adjacent light emitting units on top of the pixel separator 1, the end portion of the third color light emitting unit 5 is located below the end portions of the other color light emitting units in the adjacent light emitting units. The other color light emitting unit is the first color light emitting unit 3 or the second color light emitting unit 4. When one light emitting unit is shifted to one side (i.e., there is a shift amount), another light emitting unit adjacent to one side of the light emitting unit may have a shift overlap region, and a gap corresponding to the shift amount may occur between the other side of the light emitting unit and the adjacent another light emitting unit. Referring to fig. 1, when the second color light emitting unit 4 is shifted to the left and the third color light emitting unit 5 on the right is not shifted, there is a gap e between the second color light emitting unit 4 and the third color light emitting unit 5, and there is no color mixing here.
Alternatively, the third color light emitting unit 5 is blue;
if the first color light emitting unit 3 is red, the second color light emitting unit 4 is green;
if the first color light emitting unit 3 is green, the second color light emitting unit 4 is red.
As an example, the first color light emitting unit 3 may be doped with a red light material in a DCM series; the second color light emitting unit 4 can be made of quinacridone green light emitting material, and the third color light emitting unit 5 can be made of 9, 10-disubstituted anthracene derivative or branched anthracene derivative blue light emitting material.
Alternatively, referring to fig. 3, a distance a between the conventional second color light emitting cells 4 and the first color light emitting cells 3; referring to fig. 2, the distance between the second color light emitting cells 4 and the first color light emitting cells 3 of the embodiment of the present application is a + b, and the distance a + b is greater than the distance a, increasing the distance between the second color light emitting cells 4 and the first color light emitting cells 3. Since one third color light emitting unit 5 is disposed between each first color light emitting unit 3 and each second color light emitting unit 4, which is equivalent to increasing the distance between the first color light emitting unit 3 and the second color light emitting unit 4, the probability of color mixing of the first color light emitting unit 3 and the second color light emitting unit 4 is further reduced. Meanwhile, the arrangement mode increases the opening 2 rate of the third color light-emitting unit 5, and the improvement of the third color light-emitting unit 5 on the later color cast of the product is improved.
Based on the same inventive concept, the present application also provides a display panel, as shown in fig. 1, including: a base substrate 7 and the pixel structure described above; the pixel structure is provided on a base substrate 7.
Based on the same inventive concept, the application also provides a display device comprising the display panel.
Based on the same inventive concept, the present application further provides a manufacturing method of a pixel structure, as shown in fig. 4, the manufacturing method is applied to the pixel structure, and includes the following steps:
s101, providing a substrate base plate 7, and forming a pixel defining layer on the substrate base plate 7;
s102, a light emitting unit is disposed at each opening 2 of the pixel defining layer, and a third color light emitting layer is disposed between each second color light emitting layer and each first color light emitting layer.
Alternatively, one light emitting unit is provided at each opening 2, including:
a third color light emitting layer is evaporated at one opening 2, and then a second color light emitting layer and a first color light emitting layer at both sides of the third color light emitting layer are evaporated.
The display panel, the display device, and the method for manufacturing the pixel structure provided in the embodiment of the present application have the same inventive concept and the same advantageous effects as the pixel structures of the foregoing embodiments, and the contents not shown in detail in the method for manufacturing the display panel, the display device, and the pixel structure may refer to the foregoing embodiments, and are not described again here.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. When an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (11)
1. A pixel structure for placement on a substrate, comprising: a pixel defining layer and a light emitting layer;
the pixel defining layer includes a plurality of pixel spacers arranged in a matrix, and openings formed between adjacent pixel spacers;
the light emitting layer includes a plurality of light emitting cells;
each opening is provided with a light-emitting unit, each light-emitting unit covers the opening, and at least one side of each light-emitting unit extends to cover the top of the pixel separator on the side surface of the opening;
the light emitting units include a first color light emitting unit, a second color light emitting unit, and a third color light emitting unit;
one third color light-emitting unit is arranged between each first color light-emitting unit and each second color light-emitting unit;
the third color light emitting unit includes an anti-stokes material;
the wavelength of the third color light emitting unit is shorter than the wavelength of the first color light emitting unit and/or the second color light emitting unit.
2. The pixel structure of claim 1, wherein the third color light emitting cell comprises a first side and a second side;
the length of the first side edge is longer than that of the second side edge;
the first side edge is close to the first color light-emitting unit or the second color light-emitting unit.
3. The pixel structure according to claim 2, wherein projections of the first color light-emitting unit, the second color light-emitting unit, and the third color light-emitting unit on the substrate are rectangular;
two first side edges of the third color light-emitting unit are respectively close to one first color light-emitting unit and one second color light-emitting unit;
the projection of the plurality of third color light-emitting units on the substrate base plate is arranged at intervals in the transverse direction and the longitudinal direction;
the projection of the first side edge of the third color light-emitting unit on the substrate base plate is vertical to the first direction; the first direction is a connecting line direction of centers of the first color light-emitting unit and the second color light-emitting unit on two sides of the third color light-emitting unit.
4. The pixel structure of claim 1, wherein an anode unit in the anode layer of the light emitting layer is disposed between the pixel separators at the bottom surface of the opening and at both sides of the opening.
5. The pixel structure according to claim 4, wherein a contact surface between a side surface of the pixel separator and the light emitting unit is an arc surface;
a contact surface of a side surface of the pixel separator and the anode unit is a plane;
the top surface of the pixel separator is planar.
6. The pixel structure according to claim 1, wherein if there is an offset overlap region of the end of the adjacent light emitting units on top of the pixel separator, the end of the third color light emitting unit in the adjacent light emitting units is located below the end of the other color light emitting units; the other color light emitting unit is a first color light emitting unit or a second color light emitting unit.
7. The pixel structure according to any one of claims 1-6, wherein the third color light emitting unit is blue;
if the first color light-emitting unit is red, the second color light-emitting unit is green;
and if the first color light-emitting unit is green, the second color light-emitting unit is red.
8. A display panel, comprising: a substrate base plate and a pixel structure according to any one of claims 1-7;
the pixel structure is arranged on the substrate base plate.
9. A display device characterized by comprising the display panel according to claim 8.
10. A method for manufacturing a pixel structure, applied to the pixel structure according to any one of claims 1-7, comprising the steps of:
providing a substrate, and forming the pixel defining layer on the substrate;
and arranging one light-emitting unit at each opening to ensure that a third color light-emitting layer is arranged between each second color light-emitting layer and each first color light-emitting layer.
11. The method of claim 10, wherein disposing one of the light-emitting units at each of the openings comprises:
and evaporating a third color light emitting layer at one opening, and then evaporating the second color light emitting layer and the first color light emitting layer at two sides of the third color light emitting layer.
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| KR101931173B1 (en) * | 2012-07-27 | 2018-12-21 | 삼성디스플레이 주식회사 | Organic light emitting display device |
| KR101728793B1 (en) * | 2014-12-31 | 2017-04-21 | 엘지디스플레이 주식회사 | In cell touch liquid crystal display device and method for manufacturing the same |
| CN105280686B (en) * | 2015-10-23 | 2018-09-11 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN105552104A (en) * | 2016-01-05 | 2016-05-04 | 京东方科技集团股份有限公司 | Organic light emitting diode (OLED) pixel array, method for fabricating OLED pixel array, OLED display panel and display device |
| US10622575B2 (en) * | 2016-10-13 | 2020-04-14 | Sharp Kabushiki Kaisha | Display apparatus and method for manufacturing same |
| KR102062587B1 (en) * | 2017-02-08 | 2020-01-13 | 삼성디스플레이 주식회사 | Display device |
| CN107958923A (en) * | 2017-12-12 | 2018-04-24 | 京东方科技集团股份有限公司 | Dot structure and preparation method thereof, display panel |
| CN207966991U (en) * | 2018-02-08 | 2018-10-12 | 深圳柔宇显示技术有限公司 | A kind of polarization photoluminescent panel and electronic device |
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